The CE Series Cylindrical Lock is designed for High Traffic commercial areas such as schools, universitis, office buildings, and industrial complexes. The CE is certified ANSI/BHMA A156.2-2011 4000 Series Grade 1 and UL10C 3 Hour Rated. Featuring an internal spring design that mitigates lever sag, and allows for an aesthetically pleasing low projection rose. The CE series is available with a standard Schlage C keyway as well as SFIC, Schlage LFIC, Corbin LFIC, and TownSteel High Security Cylinders.